1 files changed, 33 insertions, 0 deletions
diff --git a/test/Transforms/ConstProp/basictest.ll b/test/Transforms/ConstProp/basictest.ll
new file mode 100644
index 0000000..14580c1
--- /dev/null
+++ b/test/Transforms/ConstProp/basictest.ll
@@ -0,0 +1,33 @@
+; RUN: opt < %s -constprop -die -S | FileCheck %s
+
+; This is a basic sanity check for constant propogation.  The add instruction 
+; should be eliminated.
+define i32 @test1(i1 %B) {
+        br i1 %B, label %BB1, label %BB2
+
+BB1:      
+        %Val = add i32 0, 0
+        br label %BB3
+
+BB2:      
+        br label %BB3
+
+BB3:     
+; CHECK: @test1
+; CHECK: %Ret = phi i32 [ 0, %BB1 ], [ 1, %BB2 ]
+        %Ret = phi i32 [ %Val, %BB1 ], [ 1, %BB2 ] 
+        ret i32 %Ret
+}
+
+
+; PR6197
+define i1 @test2(i8* %f) nounwind {
+entry:
+  %V = icmp ne i8* blockaddress(@test2, %bb), null
+  br label %bb
+bb:
+  ret i1 %V
+  
+; CHECK: @test2
+; CHECK: ret i1 true
+}